Question

Chung has $10.00 in his coin jar He plans to put $6.0 more into the jar every week .which of these shows the correct equation to find the number of weeks .After which Chung would have $58.00 in the coin jar ?

Answer 1

(a)

`M=10+6x`

(b)

Total number of weeks is 8

Explanation:

(a)

we are given

Chung has $10.00 in his coin jar

so, initial amount =$10.00

He plans to put $6.0 more into the jar every week

Let's assume number of weeks =x

so,

total money in jar after x week = (initial money) +(number of weeks)*(money put in every week)

so, we get

Total money in jar after x week is

`M=10+6x`

(b)

we are given

Chung has $58

so, we can set M=58

and then we can solve for x

`58=10+6x`

Subtract both sides by 10

`58-10=10+6x-10`

`48=6x`

Divide both sides by 6

and we get

`x=8`

So,

Total number of weeks is 8